Authors:
Angela Kriza University of Bucharest Faculty of Chemistry, Department of Inorganic Chemistry 23 Dumbrava Rosie St 020464 Bucharest Romania

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Mariana Dianu University of Bucharest Faculty of Chemistry, Department of Inorganic Chemistry 23 Dumbrava Rosie St 020464 Bucharest Romania

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Cristian Andronescu Romanian Academy, “Ilie Murgulescu” Institute of Physical Chemistry 202 Spl. Independentei P.O.Box 12-194 060021 Bucharest Romania

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Adina Rogozea Romanian Academy, “Ilie Murgulescu” Institute of Physical Chemistry 202 Spl. Independentei P.O.Box 12-194 060021 Bucharest Romania

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Adina Musuc Romanian Academy, “Ilie Murgulescu” Institute of Physical Chemistry 202 Spl. Independentei P.O.Box 12-194 060021 Bucharest Romania

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Abstract  

New copper (II) complexes of Schiff bases with 1,2-di(imino-2-aminomethylpyridil)ethane with the general composition CuLXm(H2O)x, [L = Schiff base, X = Cl, Br, NO3, ClO4, CH3COO, m = 2; X = SO42−, m = 1] were prepared by template synthesis. The complexes were characterized by elemental analysis, conductivity measurements, magnetic moments, IR, UV–VIS and EPR spectra. The thermal behavior of complexes was studied using thermogravimetry (TG), differential thermal analysis (DTA) and differential scanning calorimetry (DSC). Infrared spectra of all complexes are in good agreement with the coordination of a neutral tetradentate N4 ligand to the cooper (II) through azomethinic and pyridinic nitrogen. Magnetic, EPR and electronic spectral studies show a monomeric distorted octahedral geometry for all Cu(II) complexes. Conductance measurements suggest the non-electrolytic nature of the compounds, except for copper (II) nitrate and perchlorate complexes which are 1:2 electrolytes. Heats of decomposition, ΔH, associated with the exothermal effects were also determined.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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